Solution : https://service.sap.com/sap/support/notes/550855 (SAP Service marketplace login required)
Key words : 
multi-level order list, outputs suborders, displayed incorrectly, terms iw40, riaufk10 reason, program error, solution implement, advance correction, correction instructions, prerequisites
Related Notes : 
       
| 809064 | |
| 655737 | Support Package 03 for SRM 3.0 |